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 * Copyright (C) Codehaus.org                                                *
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 * Licensed under the Apache License, Version 2.0 (the "License");           *
 * you may not use this file except in compliance with the License.          *
 * You may obtain a copy of the License at                                   *
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 * http://www.apache.org/licenses/LICENSE-2.0                                *
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package com.googlecode.lazyparsec;

import com.googlecode.lazyparsec.error.ParseErrorDetails;

import java.util.Collections;
import java.util.List;

/**
 * Empty implementation of {@link ParseErrorDetails} for subclasses to override.
 *
 * @author benyu
 */
class EmptyParseError implements ParseErrorDetails {

    private final int index;
    private final String encountered;

    EmptyParseError(int index, String encountered) {
        this.index = index;
        this.encountered = encountered;
    }

    public final String getEncountered() {
        return encountered;
    }

    public List<String> getExpected() {
        return Collections.emptyList();
    }

    public String getFailureMessage() {
        return null;
    }

    public final int getIndex() {
        return index;
    }

    public String getUnexpected() {
        return null;
    }
}
